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  <title>获取一个连接的信息</title>
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  <div id="layout-content"><div id="function.linkinfo" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">linkinfo</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">linkinfo</span> &mdash; <span class="dc-title">获取一个连接的信息</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.linkinfo-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>linkinfo</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$path</code></span>): <span class="type"><span class="type">int</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">
   获取一个连接的信息。
  </p>
  <p class="para">
   本函数用来验证一个连接（由 <code class="parameter">path</code>
   所指向的）是否确实存在（使用  <var class="filename">stat.h</var> 中的 S_ISLNK
   宏同样的方法）。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.linkinfo-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">path</code></dt>

     <dd>

      <p class="para">
       连接的路径。
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.linkinfo-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   <span class="function"><strong>linkinfo()</strong></span> 返回 <code class="literal">lstat</code>
   系统调用所返回的 UNIX C stat 结构中的 <code class="literal">st_dev</code>
   字段。成功时返回非负数，如果链接未找到则返回 -1，如果跟 open.base_dir 冲突则返回 <strong><code>false</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.linkinfo-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-2201">
    <p><strong>示例 #1 <span class="function"><strong>linkinfo()</strong></span> 例子</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">linkinfo</span><span style="color: #007700">(</span><span style="color: #DD0000">'/vmlinuz'</span><span style="color: #007700">);&nbsp;</span><span style="color: #FF8000">//&nbsp;835<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.linkinfo-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.symlink.html" class="function" rel="rdfs-seeAlso">symlink()</a> - 建立符号连接</span></li>
    <li class="member"><span class="function"><a href="function.link.html" class="function" rel="rdfs-seeAlso">link()</a> - 建立一个硬连接</span></li>
    <li class="member"><span class="function"><a href="function.readlink.html" class="function" rel="rdfs-seeAlso">readlink()</a> - 返回符号连接指向的目标</span></li>
   </ul>
  </p>
 </div>


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